TW201223336A - Integral troffer motion detector - Google Patents

Abstract

A sensor system (20) electrically connected to and controlling at least one recessed luminaire (30). The sensor system housing (22) is externally connected to the luminaire (30) and includes a flexible member (50) projecting therefrom. The flexible member (50) supports detection electronics spaced from the sensor system housing (22) or the coupled light fixture and sensor system housings (32, 22). The flexible member (50) allows a sensor (52) to be horizontally and vertically positioned relative to the sensor system housing (22).

Description

201223336 VI. INSTRUCTIONS OF THE INVENTION: FIELD OF THE INVENTION The present invention relates to sensor systems for recessed illumination systems, and in particular to recessed illumination with remotely positionable sensors A sensor system with integrated luminaires. [Prior Art] Many sensing systems are positioned remotely away from the recessed illumination system, internally within the recessed illumination system, or are not specifically adapted to the recessed environment. Therefore, there is a need in the art to attach directly to the lamp housing, thereby allowing the sensor electronics to be placed in a sensing system in an adjacent space. SUMMARY OF THE INVENTION The present invention is directed to a method and apparatus for a sensor system of an integrated structure having a sense of unitary structure, the system having an adjustable component that allows the detection of the electrical device to be spaced apart from the lamp. . This situation allows the sensor system to be mounted to a variety of lighting fixtures having different configurations, and the entire sensor system no longer needs to be remotely mounted away from the lamp fixture. Generally speaking, in another aspect, the sensor system can easily make a pre-existing luminaire system a controlled luminaire with the sensor system. The system includes: controlling at least one recessed electric lamp to have an elongated adjustable portion; the sensing system includes a -th end and a "distal end", and the 可'_ long hard component has a shell, and the adjustable dice The distal end of the piece that is lightly coupled to the outer L includes one or more sensing 159453.doc 201223336 additionally includes at least one recessed electric light fixture having a sensor system housing, the sensing system The outer casing is externally coupled to the lamp housing. In various aspects described, the one or more sensors of the system are in direct communication with the at least one recessed electric light fixture, and the distal end of the adjustable component is heavier relative to the sensing system housing Positioning, thereby allowing the sensors to be positioned in various positions spaced from the sensing system housing. In some embodiments, the distal end of the adjustable component can be repositioned vertically or horizontally relative to the sensing system housing. In other aspects and embodiments, the distal end of the adjustable member can releasably engage one of the recesses of the electric light fixture adjacent the ceiling surface. Other embodiments may include a flexible tube that allows for easy and easy installation while also allowing adjustment and manipulation of the flexible tube. In other aspects, the sensing system housing can be releasably coupled to the electric light fixture by an electrical connector. Finally, various other embodiments may include a detachable sensing II protector having the adjacent ceiling for cutting the distal sensor into the recess of the electric light fixture One of the correct openings in the cutting tool. All of the advantages outlined above are to be understood as merely illustrative, and further objects of the embodiments can be ascertained from the disclosure herein. Therefore, a non-limiting interpretation of the stated objectives should be understood without further reading the full specification, the scope of the patent application, and the schemas included with it. [Embodiment] In the following detailed description, for purposes of explanation and description, However, it will be apparent to those skilled in the art that the benefit of the present invention is </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> <RTIgt; Inside. In addition, descriptions of well-known devices and methods may be omitted so as not to obscure the description of the representative embodiments. These methods and apparatus are clearly within the scope of the claimed invention. For example, various embodiments of the devices disclosed herein are particularly suitable for use with recessed electric light fixtures having a plurality of fluorescent lamps for use in a fluorescent-based lighting unit. Accordingly, the claimed invention is discussed in connection with this lighting unit for illustrative purposes. However, other configurations of pre-devices such as, but not limited to, LEDs and CFLs, and applications such as, but not limited to, track illumination, do not deviate from the claimed scope or spirit of the present invention. A variety of Type 35 lighting and lighting control components are required as a means of controlling the amount of light and energy used by the lighting system during various installation environments. A variety of sensors and control electronics can be utilized, such as motion sensing states, light sensors, dimming electronic controls, and other known electronic control devices, the owners of which can be integrated with lighting systems and lighting fixtures One piece structure. There is a need for an additional sensor system that allows for the installation of various spaced apart available sensing for controlling the recessed lighting fixture: the sensor can be selected in response to multiple environmental conditions so that Reduce the amount of light generated by the moonlight, control or reduce the amount of electricity used by the lighting fixture, or: activate/deactivate the lighting fixture or lighting system. These sensor systems are highly desirable from the standpoint of wiring and interface with the naturalization panel and lighting control circuitry, and are readily equipped and incorporateable with existing lighting fixtures and ceiling constructions. In this paper, many 159453.doc 201223336 specials may also be needed and implemented, such as modular, simple construction, easy installation and alpha with lighting system, and recessed lighting fixtures for electrical connection and control coupling. An electronic control unit contained within the sensor system. As illustrated in Figures 1 through 13, the sensor system 20 of the present invention is depicted as disclosed and electronically configured to control a recessed lighting fixture 3 that may be in the ceiling system 10 as shown. . The sensor system 2 is a separate control system for controlling the great lighting fixture and the recessed lighting system. The sensation benefit system 20 can be integral with pre-existing or pre-installed recessed luminaires or can be initially installed to control one or more recessed luminaires 30. The sensor system 2 as depicted and described herein can generally have a plurality of controls for the lighting fixtures as needed such that the entire set of lighting fixtures can be affected by the sensor system 20 to achieve the desired characteristics and amount Environmental conditions measured. The sensor system 20 can include any type of sensor that controls the light output of the recessed lighting fixture 3, including but not limited to motion sensing, light intensity sensing, or as measured by the sensor 12 Other environmental characteristics. The sensor system 2 for use in the recessed lighting fixture of the present invention can be designed to interface with various recessed lighting fixtures; and directly attached to the target recessed lighting fixture as depicted in FIG. Independent modular add-on products. It is further desirable that the sensor system 20 be disposed externally attached to the outer casing or sidecar box 22 as external to the lamp fixture as depicted. The outer casing 22 can include a cover 22a (Fig. 9) that is lightly attached to a container 22b (Fig. 8) that can be separated or detached therefrom, such as a hinged connection that allows the cover to be pivoted. As is generally understood and appreciated in the art, the ceiling tile 14 and other illumination 159453.doc 201223336 appliances and recessed lighting fixture system 30 are supported using the strip support grid 12 as depicted. These conventional t-bar support grids 12 are typically provided with openings of various desired widths and are used to support exhaust ports, lighting fixtures, and other systems. As depicted herein, in order to mount the sensor system 20 for the recessed illumination system 3, the sensor system 2 can be recessed and attached directly to a previously existing recessed illumination system, and Placed in electrical connectivity and controls the recessed lighting fixture 3 (in this example, the fluorescent downlight fixture supported in the ceiling). Additionally, the entire sensor system housing 22 can be attached directly or externally to the pre-existing lighting fixture housing or has been pre-assembled with the lighting fixture housing. As illustrated in Figures 2 and 3, in use, the sensor housing 22 can be releasably or permanently secured to the lamp housing by using a connector 40, a quick release mechanism, or other attachment member. The 32^ connector 4〇 (Fig. 6) can be inserted into the existing top pin of the lamp housing 32, thereby coupling the lamp housing 32 to the sensor housing 22. The sensor system 20 is electrically and controllably connected to the recessed lighting fixture 30 through the wiring 6 of the connector. The connector 40 can be snapped into a secured position (Fig. 3) in which one or more of the biasing retaining arms 42a and 42b or possibly a threaded locking nut can be used. The connector 40 can have a releasable connection at either end of one or each of the sensor housing 22 or the light fixture housing, where it is possible that the other connector end is a permanent connection. Various other or additional An attachment mechanism can be used to secure the sensor housing 22 to the light fixture 3A, which includes a permanent or releasable mechanism that can or can not be electrically connected therethrough. For example, in conjunction with a TEK screw One or more protrusions may be used for saliva. 159453.doc 201223336 The apertures 14a or various other apertures shown in the figures may be by using a drill attachment 6 or for exposing a flexible component or tube 5 ( Other devices of the distal end 50b of Figure 7) are formed in the ceiling tile 4 or other material/surface, and the sensor 52 or other detection electronics pass through the aperture or various other apertures. A detector protector 6 (Figs. 2 and 4) can be threaded onto the lens assembly of lens 51 or flexible tube distal end 50b to protect the lens during shipment. Drill attachment 60 is removed from distal end 50b, And then can be used to assist in the lens assembly The aperture i4a is created in the ceiling tile 14 or other material. The drilling attachment 60 includes a cutting tool at its end, or more specifically a plurality of teeth 62 » this case will fit the flexible member extension 56 (Fig. 5 The correct size opening required for the lens tube 57 (Fig. 11) and the screwable flange or knob "(Fig. 10) provided on the lens assembly is provided to the installer. Lens 51 and sensor/concentrator 52 will be mounted in the distal end 5〇b of the lens assembly or flexible tube. Lens mount 55 (Fig. 13) within lens tube 57 can also be used to position lens 51 within the assembly. The wiring or low voltage wiring 24 from the sensor 52 to the sensor housing 22 will be fully or partially surrounded by the flexible tube 5 and may terminate in the housing. The flexible tube can be adjusted horizontally and vertically to the location of the aperture or various other apertures in the ceiling tile or material spaced from the lamp, and then inserted through the aperture or various other apertures. Thus, the flexible tube 5〇 allows the placement of the attached sensor 52 to be modified or mounted in various positions spaced relative to the sensor housing or luminaire housing. When the sensor 52 at the retracted end 5 Ob of the flexible tube 5 is in a position through the ceiling tile 14, the screwable flange 54 is assembled to the ceiling tile 14 and exposed to the ceiling tile The lower surface of the sheet is properly modified to provide a clean appearance 159453.doc 201223336 to exposed ceiling tiles. In addition, the flexible tube 5 allows for the use of various lamp luminaire designs by allowing the tube to adjust the vertical and horizontal position of the sensor 52. For example, the sensor housing 22 and the tube 5 can be externally attached to, for example, various luminaires having different downlight depths, and still allow adjustment within recessed environmental conditions to properly position the sensor It is in a spaced position relative to the sensor housing or the lighting benefit housing. As shown in Figure 3, the flexible tube 5〇 allows the lens and/or sensor to be placed adjacent to the ceiling area or spaced apart areas. The lens 5 can have, but is not limited to, a radius of 1 inch and a viewing angle of 18 degrees, a 12 degree cone. The proximal end 50a of the flexible tube 50 is shown positioned opposite the connector 4 of the light-sensing sensor housing 22 and the light fixture 30, but other locations are contemplated. The proximal end 50a of the flexible tube 50 is secured to the sensor housing by a nut fastener 25 (Fig. 12) and includes a routing bore through which the sensor 52 passes through the proximal end 5A. It should be understood that the conduit 50 can terminate in the sensor housing 22 by an adhesive or mechanical fastener. The S-stub flexible tube 50 can be flexed/curved by tool-free members or by means of a tool, and can also retain its shape once it has been flexed or bent to its intended position for its application. Thus, the tube 5 can have other characteristics that are sufficiently rigid or allow the tube 50 to maintain its repositioned shape. The leapable component or tube can be of various lengths, sizes, configurations, and materials, such as metal (including but not limited to aluminum) or plastic. The flexible tube 5〇, lens Η, connection benefit 40, housing 22 or other part of the sensor system 2〇 may contain sealing 塾, seals or other means to prevent moisture and dust from entering the device. structure. Again, it should be understood that - or a plurality of apertures or other mechanical structures may be used to vent, cool, or provide air flow into the sensor system 2 and/or to the sensing system 159453.doc 201223336 system 20. The sensor control line 16 can be integral with the sensor system 20, which can be provided with numerous accessories for electrically controlling the recessed lighting fixture 3G and electrically connecting to the recessed illuminator 30. A removable and insertable connection can be utilized as shown in FIG. 3 to electrically and controllably connect the sensor system 2 to the recessed lighting fixture 30 such that the connector can exit the housing 22 or recessed illumination The appliance 30 defines the appliance housing 32 and thereby exits without the need to fully open the module itself. The sensor control line 16 can be easily configured to any desired configuration for connection to the recessed lighting fixture control line 3 1 as shown, as long as the sensor system 20 of the present invention is placed with the lighting fixture 3 It can be used for electrical connectivity and control connectivity. Various known sensor control lines and connectors are available for use and integrated with the depicted sensor system 2A. As shown in Figures 1-3, the sensor system 2 can be placed in the distal end 50b of the flexible tube 5b and has a lens 51 covering the sensor 52 such that the changed environmental characteristics can be placed by The control electronics are measured on the outer portion of the outer casing 22. Lens 51 can control the input characteristics of the environmental conditions being measured or amplify the characteristics. A sensor 52 attached to the distal end 5〇1) of the conduit 50 can measure a number of different known characteristics, and control circuitry and electronics can be placed on the interior of the housing 22 for proper electronic control of the recess % of lighting fixtures. This control electronics is well known in the art and can be integrated with the sensor control line 16 necessary to control the light output of the recessed lighting fixture 30 as depicted. The conduit 50, which is shown as connecting the sensor to the outer casing 22, can include a switch connected to the outer casing and a low voltage conductor 24 of the pCB 26. The sensor control line 16 can be directly connected to the recessed lighting fixture control line 159453.doc. 10,

S 201223336 3 1 so that the sensor system can directly control and electrically control the displayed recessed illumination device 30. The sensor control coil 6 and the downlight or recessed lighting fixture control line 31 can reside in the interior of the housing. 'The individual devices can be pulled out through the opening without opening any of the housings so that the devices can be Placed in electronic connectivity. Although a number of embodiments of the invention have been described and illustrated herein, it will be readily appreciated by those of ordinary skill in the art that one or more of the results and/or Other means and/or structures, and each of such changes and/or modifications, are identified as being within the scope of the embodiments of the invention described herein. More generally, it will be readily apparent to those skilled in the art that all parameters, dimensions, materials, and configurations described herein are intended to be illustrative, and actual parameters, dimensions, materials, and/or configurations will depend on the use. The particular application of the present teachings, or a number of equivalents of the embodiments of the present invention, will be recognized or can be determined using only routine examples. DETAILED DESCRIPTION OF THE INVENTION The foregoing embodiments are presented by way of example only, and in the scope of the appended claims and the equivalents thereof, the embodiments of the present invention may be described and claimed in various ways. The implementation of the example of Wei is too "quote." The invention of the invention = needle: each of the individual features, the two materials [sets and/or methods described herein. In addition, two or more of these

Any of the "sets," and "methods of materials" and "or methods" are included in the present invention of the present invention (if the U materials, kits, and/or methods are not mutually exclusive). It should be understood that all definitions as defined herein are relative to the dictionary.

C I59453.doc

• II 201223336 The definitions in the documents incorporated by reference, and/or the general meaning of the terms defined are dominant. The word "a" as used herein in the specification and claims should be understood to mean "at least one" as used in the specification and claims. "and/or" should be understood to mean "any or both" in the "and/or" column of the elements that are so combined (ie, in some cases combined with the elements that exist in other conditions). Multiple elements should be interpreted in the same way, and # 'one or more of the elements of such a combination. In addition to the elements specifically identified by the "and/or" clause, other elements may also be present, regardless of whether they are related to or related to the particular element. Thus, as a non-limiting example, reference to "A and/or" may be used in an embodiment to refer to only A (including elements other than (4), when used in conjunction with an open language such as "comprising". In another embodiment, only the case includes elements other than A; in the embodiment - both A and B (including other elements); As used herein in the specification and claims, "or" is understood to have the same meaning as "and/or" as defined above. For example, 'when separating items in the list' or 'or' or 'and/or' should be interpreted as having an inclusiveness, that is, including not only the elements of many elements or elements, but also one. Above, and depending on the situation, include additional items not listed. It is only clear that there are terms that are oppositely indicated (such as "only one" or a good one" or when used in the scope of patent application "by group 159453.doc

-12- 201223336 成”) will refer to a list of many elements that are going to + Λ ± Ding Xi elements or elements. In general, the term "or" or "previous" (such as "any", "μ", "only one" or "just one" as used herein shall be interpreted as Refers to + describe ^^ Do not know the exclusive option (that is, "one other 'not both"). "萁3 is composed of ..." shall have the general meaning of its use in the field of patent law when it is used in the scope of the application of the patent. As used herein in the specification and claims, reference to "a" or "an" or "an" At least one element of the element, but not necessarily at least one of each of the elements listed in the list of elements, and does not exclude any combination of elements in the list of elements. This definition allows for the presence of elements that are specifically identified in the list of elements, in addition to the elements of the phrase "at least one", regardless of whether they are related or not related to the particular identified element. Thus, as a non-limiting example, "at least one of" and "or at least one of A or B" or equivalently "at least one of A and / or B" In one embodiment, reference may be made to at least one (including one or more) A without B (and optionally including elements other than B); in another embodiment, at least one (including more than one) B And no A exists (and optionally includes elements other than a); in yet another embodiment, it refers to at least one (including one or more) A and at least one (including one or more if necessary) B (and optionally other Element); and so on. It should also be understood that 'unless clearly stated to the contrary, it is claimed in this article.

S 159453.doc 201223336 Any method including more than one step ^ 7 scale action The order of the Chinese action is not necessarily limited to the method step or A is in the patent application, and in the above description, the package 3 J, including "," All transitional phrases of "carrying", "having", "containing", "involving" #有", "consisting of" and the like should be understood as open, that is, meant to include not limited to. For example, the US Patent Office Patent Examination Procedure Manual (-ted States Patent 〇ffice

Manual of Patent Examining Procedures) ^ f 2111.03 t ./f states that only transitional phrases, "consisting of" and "consisting essentially of" shall be closed or semi-closed transitional phrases, respectively. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a bottom perspective view of a sensor system for a recessed illumination system in accordance with an embodiment; FIG. 2 is a bottom perspective view of the sensor system of FIG. 3 is partially broken; FIG. 3 is an enlarged cross-sectional view of the sensor system and recessed illumination system of FIG. 1 taken along line 3-3; FIG. 4 is a schematic view of the embodiment of the drill attachment of FIG. Figure 5 is a plurality of views of the embodiment of the flexible member extension of Figure 2; Figure 6 is a plurality of views of the embodiment of the connector of Figure 2; Figure 7 is an embodiment of the flexible member of Figure 2 Figure 8 is a plurality of views of the sensor housing embodiment of Figure 2 with the sensor housing cover removed; Figure 9 is a plurality of views of the sensor housing housing embodiment of Figure 2; 159453. Doc

Figure 2 is a plurality of views of the embodiment of the threaded flange of Figure 2; Figure 11 is a plurality of views of the embodiment of the lens tube of Figure 2; Figure 12 is a plurality of views of the embodiment of the nut fastener of Figure 2 And Figure 13 is a plurality of views of the lens holder embodiment of Figure 2. [Main component symbol description] 10 Ceiling system 12 t-bar support grid 14 Ceiling tile 14a Pore 16 Sensor control line ^ 20 Sensor system 22 Housing or side car box 22a Cover 22b Container 23 Projection 24 Wiring Or low voltage wiring 25 nut fasteners 26 PCB / electrical components / electronics 30 recessed lighting fixture / recessed lighting fixture system / recessed lighting system / recessed light fixtures 31 recessed lighting fixture control line 32 Lamp Fixture Enclosure 40 Connector 42a Offset Holder 159453.doc -15- Offset Holder Flexible Member or Tube/Slim Adjustable Part Proximal/First End Remote/Second End Lens Sensor/Set Optic flange or knob lens holder flexible part extension lens tube drilling attachment / detachable sensor protector cutting tool / tooth-16-

Claims (1)

201223336 VII. Patent Application Range 1. A sensing system for controlling at least one recessed electric light fixture, comprising: a sensing system (20) comprising an elongated adjustable component (5〇) a housing (22) 'the elongated adjustable member (50) has a first end (5〇a) and a distal end (50b), the first end (5〇a) of the adjustable component (50) coupled Connected to the outer casing (22), and the distal end (5〇b) of the adjustable component (50) includes one or more sensors (52); at least one recessed electric light fixture (30) having a housing (32) externally coupled to the lamp housing (32), whereby the one or more sensors (52) and the at least one recessed electric light fixture ( 30) direct communication; and wherein the distal end (5〇b) of the adjustable component (50) is repositionable relative to the sensing system housing (22), thereby allowing the one or more sensors (52) ) is positioned in various locations spaced from the sensing system housing (22). 2. The sensing system of claim 1 wherein the distal end (5〇b) of the adjustable component (5〇) is re-positionable vertically or horizontally relative to the sensing system housing (22). 3. The sensing system of claim 1, wherein the distal end (50b) of the adjustable component (50) releasably engages the light fixture (3) to be recessed to one of the adjacent surfaces. 4. The sensing system of claim 1, wherein the adjustable component (50) is a flexible tube. The sensation system of claim 1, wherein the sensing system housing (22) is releasably coupled to the electric light fixture (30) by a connector (40). 6. The sensing system of claim 1, further comprising a detachable sensor protector (60), the sensor protector (60) comprising a cutting for mounting the sensing system (20) The distal sensor (52) is inserted into the cutting tool (62) that is recessed into one of the correct openings in one of the adjacent surfaces of the lamp housing (32). 7. A recessed electric light fixture assembly comprising: a recessed sidecar box (22) externally positioned and coupled to an outer wall of an electric light fixture housing (32), the sidecar The box (22) includes a flexible tube (50) protruding from the side box (22), wherein the tube (50) of the side box (22) has a first end (5〇a) And a second end (5〇b), the first end (50a) of the tube (50) is lightly connected to the side box (22), and the second end (5 Ob) is flexed to The second end (5〇b) of the tube (5〇) further includes a position in which the sidecar box (22) and the lamp housing (32) are coupled to each other. a sensor (52); wherein the sensor (52) is routed through the flexible tube (5 〇) and with one or more electrical components of the sidecar box (22) 26) Electrical communication to control the lamp housing (32). 8. The recessed electric light fixture assembly of claim 7, wherein the sensor (52) positioned at the second end (50b) of the tube (5〇) comprises a lens (51). 9. The recessed electric light fixture assembly of claim 7, wherein the side cart (22) is releasably fastened to the outer wall of the light fixture housing (32). 159453.doc 201223336 ι 〇 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹 凹11. The recessed electric light fixture assembly of claim 10, wherein the tube (5〇) is repositionable from the undesired position to the desired position without using a tool. 12_If the request item A recessed electric light fixture assembly wherein the flexible tube (5 turns) is sufficiently rigid to maintain its shape when repositioned in the desired mounting position. 13. An electric light fixture assembly comprising: an electric light fixture (30) having a recessed light fixture housing (32); a sensor system (20) having a housing (22), The outer casing (22) has an outer flexible tube (50). The distal free end (50b) of the outer flexible tube (5) includes a lens (5 1) covering a sensor (52). The sensor (52) is electrically connected to control an electronic device (26) externally coupled to the sensor system housing (22) of the lamp housing (32), the flexible tube distal end The sensor (52) of (5〇b) can be independently positioned to be separated from the coupled sensor system housing (22) and the lamp housing (32). The sensor system housing (22) The electronic devices (26) control the light fixture (30) based on input from the sensor (52). 14. The electric light fixture assembly of claim 13, wherein the flexible tube (5〇) allows the far free end (5〇b) having the sensor (52) to be vertically and horizontally adjusted to The coupled sensor system housing (22) and the lamp housing (32) are separated. 15. For the luminaire luminaire assembly of claim π, wherein the luminaire (3 〇) is a 159453.doc. 201223336 Recessed fluorescent lamp. 16. The electric light fixture assembly of claim 13, wherein the sensor system housing (22) is releasably coupled to the light fixture housing (32). 17. The electric light fixture assembly of claim 13, wherein the distal free end (50b) of the flexible tube (50) comprises a threaded lens tube (57) that can be screwed A flange (54) is received to allow adjustment of the attachment of a material recessed through the lamp housing (32). 1 8. The electric light fixture assembly of claim 13, wherein the sensor (52) is a occupancy sensor. 19. The electric light fixture assembly of claim 13, further comprising a detachable sensor protector (60), the sensor protector (60) including for cutting for mounting the sensor system (20) The distal free end (50b) of the flexible tube (50) is inserted into one of the correct openings of the lamp housing (32) that is recessed into one of the adjacent surfaces to cut the tool (62). 20. The electric light fixture assembly of claim 19, wherein the detachable sensor protector (60) can threadably engage the distal free end of the flexible tube (50) prior to installation (50b) And surround the lens (51). 159453.doc